NRS70 Series
SECTION 4
NRS70OPS
070803 Version 1 Issue 2
www.snellwilcox.com
4.18
GENLOCK
A momentary push of this button will toggle the
Genlock function ON or OFF.
When enabled the unit will lock to an incoming
reference signal.
When not enabled the output signal will be free
running. In this mode the frequency accuracy will
be ±10 ppm.
A prolonged push of this button will reveal a menu
that allows various genlock phase adjustments to
be made.
Genlock
Genlock Enable
PAL H Phase
PAL SC Phase
PALN H Phase
PALN SC Phase
SECAM H Phase
NTSC H Phase
NTSC SC Phase
PALM H Phase
PALM SC Phase
◀
◀
◀
◀
Genlock Enable
When this item is selected (text highlighted) the
genlock function will be enabled.
◀
◀
◀
◀
(PAL/PALN/SECAM/NTSC/PALM) H Phase
Selecting this item reveals a display showing the
horizontal timing of the output signal relative to the
reference sync signal, in nanoseconds. Rotating
the spin-wheel will adjust this value.
H Phase
0 ns
Preset
H Phase
The range is ±113 µs in steps of one cycle of
subcarrier this ensures the correct SC/H timing is
maintained.
Selecting Preset returns the setting to zero (output
coincident with reference).
Note that the Preset Unit function in the Setup
menu will not change this setting.
◀
(PAL/PALN/SECAM/NTSC/PALM) SC Phase
This function allows the relative phasing between
the reference subcarrier and the output signal
subcarrier to be adjusted. Rotating the spin-wheel
will adjust this value and the numerical display
shows the phasing in degrees.
SC Phase
0.0 Deg
Preset
SC Phase
The range of adjustment is 359.9° (continuously
adjustable) in steps of 0.1°. The preset value is 0°
(output coincident with reference).
Note that the Preset Unit function in the Setup
menu will not change this setting.